/*
 * Copyright [2020-2030] [https://www.stylefeng.cn]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Guns采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
 *
 * 1.请不要删除和修改根目录下的LICENSE文件。
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 * 3.请保留源码和相关描述文件的项目出处，作者声明等。
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 */
package cn.stylefeng.roses.kernel.security.clear;

import cn.hutool.extra.spring.SpringUtil;
import cn.stylefeng.roses.kernel.rule.threadlocal.RemoveThreadLocalApi;
import lombok.extern.slf4j.Slf4j;

import javax.servlet.*;
import java.io.IOException;
import java.util.Map;


/**
 * 清空程序中的ThreadLocal
 *
 * @author fengshuonan
 * @date 2021/10/29 11:11
 */
@Slf4j
public class ClearThreadLocalFilter implements Filter {

    public static final String NAME = "ClearThreadLocalFilter";

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
        try {
            chain.doFilter(request, response);
        } finally {

            try {
                Map<String, RemoveThreadLocalApi> beansOfType = SpringUtil.getBeansOfType(RemoveThreadLocalApi.class);
                if (beansOfType != null) {
                    for (Map.Entry<String, RemoveThreadLocalApi> entry : beansOfType.entrySet()) {
                        RemoveThreadLocalApi removeThreadLocalApi = entry.getValue();
                        removeThreadLocalApi.removeThreadLocalAction();
                    }
                }
            } catch (Exception e) {
                // 清空失败
                log.error("清空threadLocal失败！", e);
            }
        }
    }

}
